Research and application for cost performance evaluation model of metallurgical coke for Shan Steel 1 880 m3 blast furnace
LI Jianyun1, ZOU Chong2, LIANG Dong1, JI Guanggang1, LIU Zhiwei1
1. Laiwu Branch, Shandong Iron and Steel Co., Ltd., Jinan 271105, Shandong, China; 2. School of Metallurgical Engineering, Xi′an University of Architecture and Technology, Xi′an 710055, Shaanxi, China
Abstract：It has been proven that it is not appropriate to evaluate stamp-charging coke in the same way as top-charging coke. In order to accurately grasp the real thermal performance of stamp-charging coke and realize the safe and economic use of stamp-charging coke and top-charging coke in blast furnaces, a metallurgical coke performance model for blast furnaces of Shandong Iron and Steel Group(Shan Steel) was developed based on the existing coke evaluation methods and the structural characteristics of stamp-charging coke. Ten conventional indicators for coke (average particle size, proportion of coke powder (size less than 25 mm), total moisture, volatile matter, ash, sulfur, cold and hot performance (M40, M10, CRI, CSR)) and six structural indicators for stamp-charging coke (high temperature reaction strength CSR1300, optical tissue index OTI, microscopic strength MSI, structural strength SSI, pseudo relative density d, carbon chemical structure d002) were included in this model using data induction analysis and fuzzy integrated evaluation methods. By constructing the interrelationships between the six structural indicators of stamp-charging coke and the four indicators of cold and hot performance (M40, M10, CRI, CSR), the 4 indicators of cold and hot performance for tamping coke were corrected to achieve unified method for the evaluation of stamp-charging coke and top-charging coke. The model has been applied to the 1 880 m3 blast furnace of Shan Steel and the prediction results given by the model plays guiding role in scientific use for various types of coke.
李建云, 邹冲, 梁栋, 姬光刚, 刘智伟. 山钢1 880 m3高炉用冶金焦性价模型研究及应用[J]. 中国冶金, 2023, 33(11): 98-105.
LI Jianyun, ZOU Chong, LIANG Dong, JI Guanggang, LIU Zhiwei. Research and application for cost performance evaluation model of metallurgical coke for Shan Steel 1 880 m3 blast furnace[J]. China Metallurgy, 2023, 33(11): 98-105.
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2023, Vol. 33 
